Finding the Fourth Proportional to 223,736.94, 308,770.76 and 128,257.99
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Solution
The fourth proportional to 223,736.94, 308,770.76 and 128,257.99 is: 177,003.93
Step by Step Solution
- Step 1: Write the proportion equation
223,736.94 : 308,770.76 = 128,257.99 : x - Step 2: Convert to fraction form
223,736.94/308,770.76 = 128,257.99/x - Step 3: Cross multiply
223,736.94x = 308,770.76 × 128,257.99 - Step 4: Simplify right side
223,736.94x = 39,602,317,048.37 - Step 5: Solve for x
x = 39,602,317,048.37/223,736.94 - Step 6: Final answer
x = 177,003.93
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.